Slug-casting machine



Nov. 22, 1927. 1,649,811

A. L. CHALFONTE SLUG CASTING MACHINE Filed Sept. 5. 1925 @kB/Yr. NVNTOR@wf Patented Nov. 22, 1927.

UNITED STATES PATENT i Iorifice.

ALBERT L. CHLALFQNTE, F' TRENTON, NEW JERSEY ASSIGNOR T0 `MERGENTHALERLINOTYPE COMPANY, A CORPORATION OF NEW YORK;

SLUG-CASTING MACHINE.

My invention relates to. slug casting-machines, such as lino-typemachines of the gen eral organization represented in Letters Patent ofthe United States, No. 436,532, to O.

Mergenthaler, wherein circulating matrices are released from a magazinein the order in which their characters are to appear in print and thenassembled in line, the composed line `larged scale of the improved moldWiper;

transferred to the tace of a mold, the mold filled with molten. metal toform a slug or linotype against the matrices` which produce the typecharacters thereon, and the matrices thereafter returned throughdistributing mechanism to the magazine 't'rom which they started.

In these machines it is customary to mount the molds on a rotatablewheel or disc, whereby the mold selected for use is first presented inthe slug casting' position and then carried around to the slugvejcctingposition, at` each cyclo of operation ot the machine. Before the slug iscast, the active mold is pressed tightly against the composed line ofmatrices at the front, and the mouthpiece of the type metal pot islikewise pressed tightly against the mold at the rear. The molten metalis then forced under pressure into the mold slot and up against theintaglio characters of the matrices to form the slug or linotype. Inpractice, it hasbeen found that unless the contact ot the rear tace ofthe mold with the mouthpiece ot the `melting pot is substantiallyperfect at all times, thin films or fins ot' metal will accumulate onthe rear face of the moldfand impair the lock-up to such extent thatback squirts and other serious diiliculties are likely to result.

The present invention contemplates an improved mold wiper, which isintended to obviate these diiiculties by removing, alter each castingoperation, any metal that may adhere to the back ot the mold. In theembodiment illustrated, here is employed a wiping pad resilently mountedon a normally fixed support, which is adjustably secured to a. rigidbracket fastened to the machine rame. o

In the accompanying drawings I have shown my invention only in preferredform and by way of example, but obviously many changes and variationsmay be made therein and in its mode of operation that will stillbecomprised vwithin its spirit. Generally speaking, I desire it to beunderstood that I do not limit myself to any specific term i yshowing myinvention applied thereto; y

` Fig. 2 is a vertical section View on an ena-nd . Fig. 3 is a detailsection, showing a modilication. 1

As shown in Fig. 1 the mold wheel or disc A is of ordinary constructionand equipped with a plurality or molds A1, any one of whichniay beselected for use as desired. An intermittently `driven pinion B,arranged in mesh with the toothed flange of the disc, rotates the latterin an anti-clockwise direction to present the active mold in castingposition, and thereafter to carry it around to ejecting position, ateach cycle of operation. Before casting, the disc A is advanced to pressthe i'ront tace of the active mold A1 (which then occupies a horizontalposition) firmly against the composed line of matrices `X, which areclamped tightly between vise jaws C to prevent leakage of metal throughthe line at the time of casting. At, about the same time, the meltingpotD1 is swung forwardly to press its mouthpiece D tightly against the backof the mold. In this lockup condition of the parts, molten metal isforced from the pot l)1 through the mouthpiece D into the mold slot A?and up against `the composed line of matrices X at its front for thecasting of the slug. The parts just described and their inode ofoperation are well-known in the art and constitute no part of myinvention. 1

As before stated, the present invention is directed to an improvedwiping device which will serve to keep the rear face of the slug castingmold in a clean and smooth condition and tree from adhering vparticlesof type metal. In the embodiment illustrated, the improved devicecomprises a wiping pad E (which may be ot telt or other suitablematerial) mounted in" a support F and arranged in the path ot the moldsso that the active one, in passing from the casting to the ejectingposition, will brush across the exposed tace of the pad and thus becleansed or freed ot any metalor other foreign matter adhering to therear face thereof.

lil() being adjustably secured by a clamp screw F3 in the upper end of abracket Gfastened `by a screw bolt Grlrto the base frame of the machine.Preferably, the recessed portion F1 and the shank portion F2 areseparately produced and screwed together as at F4, the former being madeof cast metal and the latter of rolled steel.

rIhe pad E is properly sized to fit snugly within the recess F'"1 of theend portion F:l and is resiliently supported therein by means of a shortcompression spring I-I located insaid recess F5 and pressing for-`wardly against a reinforcing plate Fil fastened to the rear face of thepad. 'These parts (see Fig. 2)` are maintained in proper assembledrelation by ay shouldered screw J tapped into the threaded end of thestemF2 and formed with an elongated shank J1 and a head J2. The pad E isapertnred at E2 to accommodate the head of said screw so that it maybear against thereinforcing plate E1 and thus limit the forward`movement of the pad under the pressure of the spring H, the shank J1 ofthe screw being long enough to allow the front face of the pad toprotrude a little distance beyond the end of the support F.

1 According to the Jforegoing arrangement, and` after the originalsetting of the bracket G to `bring the support F in proper angularrelation to therear face of the mold disc A, the support F is shifted inthe bracket toward the `disc until the pad E, by its en ygagen'ient withthe latter, places the spring H under the desired tension. The clampscrew F3 is then tightened tosecure the support to the bracket Gr, thusmaintaining the pad iesiliently engaged with the back of the discA, tofunction in the manner described.

Fig. 3 shows a modified form of device,

`wherein the recessed portion or casing F1 is made integral with thebracket Gr. In this instance, the reinforcing plate E1 is provided withperipheral guide flanges E3, E, slidably fitted within the recess F5,and is conreinforcing desire `to secure by Letters Patent of thel UnitedStates is set forth in the following claims:`

1. In or for a slug casting machine, a mold wiper comprising a supportformed with a recess, a. wiping pad inovably ,1.

mounted in the recess, a reinforcing plate attached to the wiping pad, aspring located in the support recess and actingto press the padoutwardly, and a confining screw cooperating with the reinforcing plateto.

limit the outward movement of the pad.

2. In or for a slug casting machine, a mold wiper comprising a supiiortformed with a recess, a wiping `pad inovably mounted in the recess, areinforcing plate attached to the wiping pad, a spring located in thesupport recess and acting to press the pad outwardly, a confining screwcooperat ing with the reinforcing plate to limit the outward movement ofthe pad. and a fixed bracket to which the support is adjustablyconnected.

3. In or for a slug casting machine, a mold wiper comprising a supportformed with a cup-like recess, a wiping pad mounted in said recess, areinforcing plate attached to the wiping pad, and a spring located inthe recessaud acting upon thc plate to render the wiping pad resilient.i

fl. In or for a slug casting machine, a mold wiper comprising a supportformed with a cup-like recess, a wiping pad mounted in said recess, areinforcing plate attached to the wiping pad, a spring located y in therecess and acting upon the reinforcing plate to render the wiping padresilient, and a guide pin projecting forwardlir from the base of therecess and passiiig through a central opening in the reinforcing plateto guide the pad in its movements.

. In testimony whereof, I have aflixed my signature hereto. i

ALBERT L. CHALFONTE.

